83666 : Linux Kernel cred.c copy_creds() Function replacement_session_keyring Flag Clearing Failure Local DoS
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Timeline

Disclosure Date
2012-07-10

Description

Linux Kernel contains a flaw that may allow a local denial of service. The issue is triggered when the copy_cred() function in cred.c fails to properly clear flags in replacement_session_keyring, and will result in loss of availability for the system.

Classification

Location: Local Access Required
Attack Type: Denial of Service
Impact: Loss of Availability
Solution: Patch / RCS
Exploit: Exploit Unknown
Disclosure: Vendor Verified
OSVDB: Authentication Required

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Red Hat has released a patch to address this vulnerability. Check the Red Hat Security Advisory in the references section.

Products

Linux Kernel Organization, Inc.
Kernel
Unspecified

References

Credit

CVSSv2 Score

CVSSv2 Base Score = 4.7
Source: nvd.nist.gov | Generated: 2012-08-09 | Disagree?

Access_vector_0 Access_complexity_1 Authentication_2 Confidentiality_impact_0 Integrity_impact_0 Availability_impact_2

Comments

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